body,html{
    background-color: #f2f2f2;
    min-width: 1200px;
    width: 100%;
    height: 100%;
    overflow: hidden;
    min-height: 100%;
}
header {
  width: 100%;
  height: 8%;
  background-color: #fff;
  font-size: 0px;
  position: fixed;
  left: 0px;
  top: 0px;
  min-width: 1200px;
}
header img {
  width: 15%;
  height: 100%;
  /* box-shadow: 5px 2px 2px #ccc; */
}
.s2 {
  display: none-;
}
.header_img img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  float: left;
}
.header_img {
  float: right;
  width: 235px;
  margin-top: 5px;
  color: #999;
}
.header_img p {
  width: 150px;
  float: right;
  font-size: 16px;
  margin-right: 10px;
  line-height: 35px;
}

.header_img p a {
  color: #999;
}
aside {
  width: 15%;
  height: 100%;
  margin-top: 50px;
  height: 100%;
  float: left;
}
.sidebar-ul {
  width: 100%;
  background-color: #20222a;
  height: 100%;
  overflow: hidden;
}
.sidebar-ul a {
  color: #ccc;
  padding-left: 18%;
}
.sidebar-ul li {
  width: 100%;
  line-height: 60px;
  font-size: 16px;
}
.sidebar-ul .a1:hover {
  width: 97.5%;
  border-left: 5px solid #3c9688;
}
.li_list {
  width: 100%;
  line-height: 50px;
  display: none;
}
.li_list p {
  width: 100%;
}
.li_list p a {
  padding-left: 35%;
}
.sidebar-ul-li {
  position: relative;
}
.sidebar-ul-li > a {
  display: block;
  width: 100%;
  height: 100%;
}
.sidebar-ul-li > a:hover ,.li_list p:hover{
  border-left: 5px solid #3c9688;
}
.sidebar-ul-li-f1 {
  position: absolute;
  top: 10px;
  right: 15%;
  font-size: 25px;
}
/* iframe */
iframe {
    width: 85%;
    height: 92%;
    float: left;
    border: none;
    margin-top: 51px;
    overflow-y: scroll;
}
/* 首页按钮背景颜色 */
.sidebar-ul li:first-child{
  background-color: #3c9688;
}